Hi Rohan,
You make some very good observations. The problem with the rules is that they can be interpreted differently and are often enforced differently. The term near vertical can mean different things to different people.
When Alois and I played table tennis, no one really ever got faulted as long as they threw the ball up at least 6 inches. What is now a bad habit has been ingrained over years and years of practice so it is actually very difficult for Alois and I to serve by throwing the ball up almost perfectly vertical. And as you mention a lot of players at the Olympics serve very similarly to Alois and don't get called for faults either.
For new players learning to serve, it is certainly better to try and follow the rules as closely as possible to avoid any problems in the future.
I personally think the service rules are too complex and are not enforced consistently. It's not really fair to let a player to not be faulted for years and then suddenly be faulted in an important match as happened to Ding Ning. if faults are going to be called, they need to be enforced consistently at all levels.
As you can see this is not a simple issue.
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2 comments from the PingSkills community.